[linux-dvb] Support for Technotrend DVB-C 1500

James Fisher jef2115 at gmail.com
Thu Oct 27 02:31:08 CEST 2005


Cool.

Just in the process of upgrading FC4 with the 2.6.13 kernel to work with the
latest CVS tree, so I'll let you (all) know how it goes.

James.

On 10/25/05, Simo Kivimäki <simo.j.kivimaki at tut.fi> wrote:
>
> James Fisher wrote:
> > I've just got hold of one of these as a replacement for my previous
> > DVB-C card which is no longer available.
> >
> > Are the drivers for this board checked into CVS?
>
> There is driver for TT DVB-C 1500 but it has problmes with QAM128
> signal. I have tried to increase timeouts and still tuning gets locked
> only occasionally with my card. The kernel modules are budget-ci and
> stv0297. I don't have access to non-QAM128 signals so I don't know how
> they work.
>
> It would be nice to get that card working so what is the situation with
> the driver development?
>
> I recently made some testing with stv0297_cs2 driver and used it with my
> DVB-C 1500 card. With some changes it compiled as the driver for DVB-C
> 1500 card and the budget-ci registers the frontend correctly.
>
> But it does not work. Of course that's not a surprise because the driver
> is not made for the card.
>
> Here's dmesg debug messages for the cs2 driver used with TT:
> spectrum inversion: off
> symbolrate: 6900000, regval: 0000000000000000
> initialized - waiting for the locks now
> waiting for WBAGC lock
> WBAGC has lock
> waiting for equalizer 1 lock
> timed out
>
> And that repeats.
>
> Changes that I made to get it 'work':
> - Change the name to stv0297 (files and api functions)
> - Added 'u8 invert:1' and 'u8* inittab' to struct stv0297_config in
> header file.
> - In function stv0297_readregsI changed the i2c_transfer to be done in
> to parts.
>
> I'm not familiar with the kernel drivers nor stv0297 so I have no idea
> for further modifications. I hope that some developer could try to solve
> this problem in some way or give advice for me to debug it.
>
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